Improvement in sandpapering-machines



2 Sheets- Sheet 1 H. W. MERRILL. Sand-Papering Machine.

Patented Feb. 16,1875.

Mezzo; gi /WA @M Ob a THE GRAPHIC CO.PHOTO.-LIYH.39&4! PARK PLACER-Y.

2 Sheets--Sheet2-. H. W. MERRILL.

Sand-Papering Machine. N0. |59,953 Patented Feb. 16, 1875.

\ Wiiflflsses: I I I Inventor:

THE GRAP H'C C0.PNOT0 .-LlTli-39 3.41 PARK PLAC L Nrrnn STATES PATENT@FFIGE.

IMPROVEMENT IN SANDPAPERINGHMACHINES.

Specification forming part of Letters Patent No. [59,953, dated February16, 1875 application filed January 30, 1875.

To all whom it may concern:

Be it known that I, HOLLIS W. MERRILL, of Lynn, in the county of Essexand State of Massachusetts, have invented certain new and usefulImprovements in Sandpapering-Machines and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to which it pertains to make and usethe same. reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to that class of machines used in the arts forthe purpose of reducing the rough and uneven surfaces of articles madeof wood, metal, or leather, such as toolhandles, pen-holders, or anyother surface upon analogous material which it may be desired to operateupon, the object being to so form the rolls for carrying the sand-paperas to give them an elastic yielding surface, and allow of the readyremoval of and replacement by new sheets of the Worn sandpaper; and theinvention consists in the means by which this is accomplished, as willbe hereinafter fully described, and then claimed.

Figure 1, Sheet 1, of the drawings presents a perspective View of one ofthe rolls ready for use. Fig. 2 represents a section upon the line ax ofFig. 1. Fig. 3 shows a section of the roll upon the same line as Fig. 2,but with the clamps removed to allow the spring to open the elasticcovering of the roll. Fig. 4 is a plan view of the spring, showing themethod of forming it from a single sheet of metal. Fig. 5, Sheet 2,presents an end view of a roll with the clamps for securing the ends ofthe elastic covering.

In the drawings, the body of the wheel or roll, whether constructed ofwood or metal, is represented by the letter A. B represents the elasticcovering, consisting of felt; and C denotes the abrading surface ofsand-paper or emery-cloth. In the spring-roll, Fi 1, the felt is securedto the spring-plate D by means of thread passed through the openings a,near the edges of the plate, while doing this, Fig.

the jaws of the plate, being open, as shown in 3, Sheet 1. Thesand-paper, or other abrading material, cut in appropriate lengths,

is then applied, the edges being turned within the jaws andhooked overthe projecting points 6, with which they are provided. The jaws beingthen brought together and secured by means of the clamps b, thecoverings are held firmly in position.

Fig. 5, Sheet 2, is an end view of a roll provided With hinged plates E,instead of springplates, to which the coverings are fastened in the samemanner as in the spring-roll.

This method of construction is found to be of great advantage wherelarger rolls of metal are used, instead of the wooden roll.

This method of securing elastic and abrasive coverings tobuffing-cylinders may be employed either in solid or hollow cylinders.

In Fig. 6 is represented a hollow metallic cylinder, to which thecoverings are applied, A denoting the shaft, and the other parts beingrepresented by the letters before mentioned.

The clamp b is preferably formed as shown in Fig. 1, Sheet 1, beingpivoted near its middle, and one end of it being provided with two jawsprojecting at right angles to its body, which embrace the ends of thesheet of abradin'g material, as well as the springs or other devices towhich they may be fastened, and. when closedis retained in that positionby the spring (1.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent of the United States, the following:

1. The spring D, constructed as and for the purpose specified,

2. The clamp I), provided at one end with jaws for clasping thematerial, as described, and at the other with the spring cl, all as andfor the purpose set forth.

3. The hinged plates E, in combination with 'the roll A and elasticcovering B, substantially as and for the purpose specified.

4. The abrading-rolls, constructed as herein described and shown, andfor the purposes set forth.

I11 testimony that I claim the foregoing as my own I hereunto affix mysignature in presence of two witnesses.

HOLLIS W. MERRILL.

Witnesses:

P. LENNOX, Jn, M. LENNOX.

